Appears on releases
| # | Title | Length | Track artist | Release title | Release artist | Release group type | Country/Date | Label | Catalog# |
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 1.15 | プロローグ | 1:29 | class | class book 〜class 1998 to 1996 best〜 | class | Album + Compilation |
| APOLLON (imprint of Apollon Music Industrial Corp. (later Apollon Inc.)) | APCA-158 |
| 2.1 | プロローグ | 1:28 | class | BEST of BEST | class | Album + Compilation |
| WEBKOO | WKCL-3032, WKCL-3033 |
| 1.1 | プロローグ | 1:29 | class | プレミアム・ベスト | class | Album + Compilation |
| Warner Music Japan (primary imprint of Warner Music Japan, Inc.; do not use for copyright/publisher/etc. relationships!) | WPCL-10703 |
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